Earthquake: The shaking and trembling that results from the rock beneath Earth's surface. Stress: The force that acts on rock to change its shape or volume. Shearing: Stress that pushes a mass of rock in opposite directions. Tension: Stress that pulls on the crust, stretching rock so that it is thin in the middle. Compression: Stress that squeezes rock until it folds or breaks. Deformation: Any change in the volume or shape of Earth's crust. Fault: A break in Earth's crust where of slabs of the crust slip past each-other. Strike-slip fault: The rock on either slide of the fault where slip past each-other with little up-or-down motion. Normal Fault: a type of fault where the hanging wall slides downward; caused by tension in the crust. Hanging wall: The half of the fault that lies above. Footwall: The half of the fault that lies below. Reverse fault: a type of fault where the hanging wall slides upward.
Table of Contents
Earths Crust in Motion 2.1
Vocabulary:
Earthquake: The shaking and trembling that results from the rock beneath Earth's surface.
Stress: The force that acts on rock to change its shape or volume.
Shearing: Stress that pushes a mass of rock in opposite directions.
Tension: Stress that pulls on the crust, stretching rock so that it is thin in the middle.
Compression: Stress that squeezes rock until it folds or breaks.
Deformation: Any change in the volume or shape of Earth's crust.
Fault: A break in Earth's crust where of slabs of the crust slip past each-other.
Strike-slip fault: The rock on either slide of the fault where slip past each-other with little up-or-down motion.
Normal Fault: a type of fault where the hanging wall slides downward; caused by tension in the crust.
Hanging wall: The half of the fault that lies above.
Footwall: The half of the fault that lies below.
Reverse fault: a type of fault where the hanging wall slides upward.
Outline:
* Earth's crust in motion
* Stress in the crust
* Types of stress
* Kinds of faults
* Friction along faults
* Mountain Building